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by Foxter
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Noutăţi, prezentări, teste laptop
by Foxter
[23 November 2014, 15:48]
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- (22 November 2024, 00:10)
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Users: 0Guests: 80Total: 80This is the story of yet another company that decided to follow the footsteps of Antec, Corsair and CoolIt and give it a try with a new compact cooling system.
When we first looked at the Opteron 6276, our time was limited and we were only able to run our virtualization, compression, encryption, and rendering benchmarks. Most servers capable of running 20 or more cores/threads target the virtualization market, so that's a logical area to benchmark. The other benchmarks either test a small part of the server workload (compression and encryption) or represent a niche (e.g. rendering), but we included those benchmarks for a simple reason: they gave us additional insight into the performance profile of the Interlagos Opteron, they were easy to run, and last but not least those users/readers that use such applications still benefit.
Back in 2008, however, we discussed the elements of a thorough server review. Our list of important areas to test included ERP, OLTP, OLAP, Web, and Collaborative/E-mail applications. Looking at our initial Interlagos review, several of these are missing in action, but much has changed since 2008. The exploding core counts have made other bottlenecks (memory, I/O) much harder to overcome, the web application that we used back in 2009 stopped scaling beyond 12 cores due to lock contention problems, the Exchange benchmark turned out to be an absolute nightmare to scale beyond 8 threads, and the only manageable OLTP test—Swingbench Calling Circle—needed an increasing number of SSDs to scale.
The ballooning core counts have steadily made it harder and even next to impossible to benchmark applications on native Linux or Windows. Thus, we reacted the same way most companies have reacted: we virtualized our benchmark applications. It's only with a hypervisor that these multi-core monsters make sense in most enterprises, but there are always exceptions. Since quite a few of our readers still like seeing "native" Linux and Windows benchmarks, not to mention quite a few ERP, OLTP, and OLAP servers are still running without any form of virtualization, we took the time to complete our previous review and give the Opteron Interlagos another chance.
We are going to talk about features, cooling, level of noise, overclocking potential and finally performance of one of the first proprietary graphics cards based on AMD’s fastest GPU. We will also check how fast a CrossFireX configuration of two Radeon HD 7970 graphics cards will turn out in our tests.
The flagship mainboard from the microprocessor giant doesn’t strike you with unique design, specific features or functionality. However, it is phenomenally energy-efficient in its category, of course.
Today we are going to compare the cooling efficiency of the best air-coolers out there and one mainstream liquid cooling solution in a system with Intel Core i7-3960X Extreme Edition inside.
NZXT recently released the Switch 810, a new high-end full tower model they proudly had on display at CES at the same time they were seeding samples to reviewers. It's a looker to be sure, but NZXT's engineers also played a lot with the insides of the enclosure, and what they've put together is a chassis with a remarkable number of uncommon features designed to appeal to enthusiasts who want to maximize both the utility of their machines along with the control they have over that utility. It looks great on paper and great on display, but how does it work in practice ?
Announced late last month and shipping 3 weeks ago, AMD kicked off the 28nm generation with a bang with their Radeon HD 7970. Combining TSMC’s new 28nm HKMG process with AMD’s equally new Graphics Core Next Architecture, AMD finally took back the single-GPU performance crown for the first time since 2010 with an all-around impressive flagship video card.
Of course AMD has always produced multiple video cards from their high-end GPUs, and with Tahiti this was no different. The second Tahiti card has been waiting in the wings for its own launch, and that launch has finally come. Today AMD is launching the Radeon HD 7950, the cooler, quieter, and cheaper sibling of the Radeon HD 7970. Aimed right at NVIDIA’s GeForce GTX 580, AMD is looking to sew up the high-end market, and as we’ll see the Radeon HD 7950 is exactly the card to accomplish that.
In the nearest future Intel is going to start selling their new quad-core LGA 2011 processor – Core i7-3820, which will boast low price tag of only $285. Let’s see how attractive the new product is going to be.
<p><span style="font-size: small;">Today we are going to talk about five power supply units from NZXT ranging in capacity from 650 W to 1000 W and certified according to 80 PLUS Bronze and Gold standards.</span></p>
<p><span style="font-size: small;"><a href="http://www.xbitlabs.com/articles/cases/display/nzxt-psu.html" target="_blank">Read more...</a><br />
</span></p>
For most people seeking accurate color reproduction and wide viewing angles, IPS has been the screen technology of choice for years now. The main issues against IPS have typically been response time for gamers, a higher black level than VA technologies, and more prominently cost. More and more vendors have been introducing e-IPS displays, which is a more transparent version of IPS that allows for the use of lower powered backlights, lowering the cost to consumers. The tradeoff is that this does have a negative effect on contrast shifts in the panel when viewed at an angle, though color shifts still are not present.
There was a bit of chatter this past fall when AOC introduced the i2353 display, which is an LED backlit IPS panel with an MSRP under $200. Had the prices of IPS panels and components finally fallen to the point where they would be able to start forcing companies to transition to them away from TN for their affordable monitor lines? To find out if the AOC monitor was still able to offer a good level of performance at this price point we requested a review sample, which they quickly provided.